<?php
//connect to the database
require_once('connectvars.php');
$firstname = ( $_POST['firstname']);
$lastname = ( $_POST['lastname']);
$username = ( $_POST['username']);
$password = ( $_POST['password1']);
$email = ( $_POST['email']);
//insert data into table
$query = "INSERT INTO summerfun_users (username, password, email, first_name, last_name) VALUES ($username, '$password', '$email', '$firstname', '$lastname')";
mysqli_query($dbc, $query);
//confirm success with the user
echo "congrats friend, you are now a member of summer fun";
?>
i am getting undefined index errors on all my variables, please help